A method and device for generating a power supply voltage (Vf), referenced to a first reference potential (4), in an electronic system including an energizing source (3) connected to the first and second reference potentials (4, 5) so as to impart an AC voltage differential between the reference potentials (4, 5), wherein the device includes: (i) a source (10) for supplying AC voltage, which is referenced to the second reference potential (5), connected to the first reference potential (4), and encompasses the energizing source (3); and (ii) rectifying and filtering elements (1) connected, at the input thereof, to the first reference potential (4) and to the source (10) for supplying AC voltage, respectively, so as to generate, at an output (8), a power supply voltage (Vf) referenced to the first reference potential (4) by rectifying a voltage at the terminals of the source (10) for supplying AC voltage.
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1. Device for generating a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source.
A device generates a power supply voltage (Vf) within an electronic system where there are two reference potentials. An excitation source creates the first reference potential relative to the second, causing an AC voltage difference between them. The device includes an AC voltage source, referenced to the second potential, that generates the first reference potential and incorporates the excitation source. Rectifying and filtering components are connected to both the first reference potential and the AC voltage source. These components rectify the voltage from the AC voltage source to produce the power supply voltage (Vf), which is referenced to the first reference potential, at the output.
2. Device according to claim 1 , wherein the first excitation source is referenced to the second reference potential.
The device for generating a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source. In this version, the excitation source creating the first reference potential is itself referenced to the second reference potential.
3. Device according to claim 2 , the first excitation source comprising a buffer referenced to the second reference potential, connected at its output to the first reference potential, and controlled at its input by an oscillator referenced to said first reference potential.
The device for generating a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source; wherein the excitation source is referenced to the second reference potential. The excitation source consists of a buffer that's referenced to the second reference potential. The buffer's output is connected to the first reference potential, and its input is controlled by an oscillator that is referenced to the first reference potential.
4. Device according to claim 1 , the rectifying and filtering means connected to the first excitation source.
The device for generating a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source. In this configuration, the rectifying and filtering components are also connected to the excitation source.
5. Device according to claim 1 , the AC voltage supply source comprising at least one second excitation source connected to the second reference potential, the rectifying and filtering means connected to said second excitation source.
The device for generating a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source. The AC voltage source includes at least one additional excitation source connected to the second reference potential, and the rectifying and filtering components are connected to this second excitation source.
6. Device according to claim 5 , wherein an output of the second excitation source is referenced to the first reference potential.
The device for generating a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source; wherein the AC voltage supply source comprising at least one second excitation source connected to the second reference potential, the rectifying and filtering means connected to said second excitation source. In this configuration, the output of the second excitation source is referenced to the first reference potential.
7. Device according to claim 1 , wherein the rectifying and filtering means comprise switching means.
The device for generating a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source. The rectifying and filtering components use switching elements (e.g., transistors) to perform rectification.
8. Device according to claim 1 , wherein the rectifying and filtering means comprise at least one diode inserted between the AC voltage supply source and the power supply voltage (Vf).
The device for generating a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source. The rectifying and filtering components include at least one diode placed between the AC voltage source and the power supply voltage (Vf).
9. Device according to claim 1 , wherein the rectifying and filtering means comprise at least one diode having a low threshold.
The device for generating a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source. The rectifying and filtering components use at least one diode that has a low forward voltage.
10. Device according to claim 1 , wherein the rectifying and filtering means comprise a filtering capacitor connected to the first reference potential and to the power supply voltage (Vf).
The device for generating a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source. The rectifying and filtering components include a capacitor connected to the first reference potential and to the power supply voltage (Vf) for filtering.
11. Device according to claim 1 , produced using integrated electronics technologies.
The device for generating a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source. The entire device is built using integrated circuit manufacturing techniques.
12. Electronic capacitive measurement system comprising a first sub-system electrically referenced to the first reference potential, a second sub-system electrically referenced to the second reference potential, the electronic capacitive measurement system further comprising the device according to claim 1 .
An electronic capacitive measurement system has two sub-systems. The first sub-system is electrically referenced to the first reference potential, and the second sub-system is electrically referenced to the second reference potential. The measurement system also includes the power supply device. The power supply device generates a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source.
13. Electronic capacitive measurement system according to claim 12 , further comprising a charge amplifier referenced to the first reference potential and supplied by the device for generating the supply voltage (Vf) referenced to said first reference potential.
An electronic capacitive measurement system has two sub-systems. The first sub-system is electrically referenced to the first reference potential, and the second sub-system is electrically referenced to the second reference potential. The measurement system also includes the power supply device. The power supply device generates a power supply voltage (Vf) referenced to a first reference potential, in an electronic system comprising a first excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the device comprising: an AC voltage supply source referenced to said second reference potential, generating said first reference potential, and encompassing said first excitation source, and rectifying and filtering means connected to said first reference potential and to said AC voltage supply source to generate, at an output, the power supply voltage (Vf) referenced to said first reference potential by rectification of a voltage at terminals of the AC voltage supply source. The capacitive measurement system contains a charge amplifier that's referenced to the first reference potential. This charge amplifier is powered by the power supply device which creates the supply voltage (Vf) referenced to the first reference potential.
14. Method for generating a supply voltage (Vf) referenced to a first reference potential in an electronic system comprising an excitation source configured for generating said first reference potential and referenced to a second reference potential so as to impose an alternating current (AC) voltage difference between these reference potentials, the method comprising: generating an AC supply voltage by means of an AC voltage supply source referenced to said second reference potential to generate said first reference potential, the AC voltage supply source encompassing said excitation source, and rectifying and filtering a voltage at terminals of said AC voltage supply source to generate the supply voltage (Vf) referenced to said first reference potential.
A method generates a supply voltage (Vf) referenced to a first reference potential within an electronic system having an excitation source that establishes this first reference potential. The excitation source is referenced to a second reference potential, and there's an AC voltage difference between the two potentials. The method includes generating an AC supply voltage using an AC voltage source that is referenced to the second reference potential. This AC voltage source creates the first reference potential and includes the original excitation source. Finally, the method rectifies and filters the voltage at the AC voltage source's terminals. This generates the supply voltage (Vf), which is referenced to the first reference potential.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
June 8, 2012
May 2, 2017
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